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### About Priority Surfaces

(For information on accessing the dialog box that contains this item, see "Editing CAD Elements".)

You can use the Set as Priority check box on the Edit CAD Elements dialog box to define a prioritized set of CAD surfaces for Find Noms (find nominals) processing. These are called "priority surfaces".

Prioritizing surfaces speeds up the calculation of nominal values as it allows Planner to determine which surfaces to check first. There is no limit to the number of surfaces that you can select. The order that you select the surfaces determines the order of the search.

Whenever you open the Edit CAD Elements dialog box and select the Set as Priority check box, Planner automatically selects the previously stored set of surfaces.

Setting Priority Surfaces

1. Select Edit | Graphic Display Window | CAD Elements.

2. If the Set as priority check-box is not marked, mark it now. Any surfaces that are already prioritized are highlighted.

3. Add or remove surfaces to this list by selecting them in the Graphic Display window.

4. Click Apply or OK button to update the measurement routine with the changes made to the list of priority surfaces.

Storing a New Set of Priority Surfaces

1. Open the Edit CAD Elements dialog box (Edit | Graphic Display Window | CAD Elements).

2. Select the Set as Priority check box. If you've previously defined a set of surfaces, Planner selects them in the Graphic Display window.

3. With the Set as Priority check box selected, click the Deselect button and then click the Apply button. This essentially tells Planner to clear any stored surfaces.

4. Deselect the Set as Priority check box.

5. Select the new set of surfaces to store.

6. Select the Set as Priority check box.

7. Click the Apply button.

8. Click OK.